1 files changed, 5 insertions, 0 deletions
diff --git a/llvm/include/llvm/CodeGen/MachineLoopUtils.h b/llvm/include/llvm/CodeGen/MachineLoopUtils.h
index 41379b75d00a..2cb0134ca848 100644
--- a/llvm/include/llvm/CodeGen/MachineLoopUtils.h
+++ b/llvm/include/llvm/CodeGen/MachineLoopUtils.h
@@ -10,6 +10,7 @@
 #define LLVM_LIB_CODEGEN_MACHINELOOPUTILS_H
 
 namespace llvm {
+class MachineLoop;
 class MachineBasicBlock;
 class MachineRegisterInfo;
 class TargetInstrInfo;
@@ -36,6 +37,10 @@ MachineBasicBlock *PeelSingleBlockLoop(LoopPeelDirection Direction,
                                        MachineRegisterInfo &MRI,
                                        const TargetInstrInfo *TII);
 
+/// Return true if PhysReg is live outside the loop, i.e. determine if it
+/// is live in the loop exit blocks, and false otherwise.
+bool isRegLiveInExitBlocks(MachineLoop *Loop, int PhysReg);
+
 } // namespace llvm
 
 #endif // LLVM_LIB_CODEGEN_MACHINELOOPUTILS_H